#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int a = 0;
	while ((scanf("%d", &a)) != EOF)
	{
		int left = 1;
		int right = a;
		for (int i = 1; i <= a; i++)
		{
			for (int j = 1; j <= a; j++)
			{
				if (j == left || j == right)
					printf("*");

				else
					printf(" ");

			}printf("\n");
			left++;
			right--;
		}printf("\n\n");
	}
	return 0;
}